User`s guide

Universal Library User's Guide Analog Input Boards - PCI-DAS1602, PCI-DAS1200 & PCI-DAS1000 Series

Event notification

Event notification functions and methods supported

PCI Versions Only

UL: cbEnableEvent(), cbDisableEvent()

UL for .NET: EnableEvent(), DisableEvent()

Event notification argument values

EventType ON_SCAN_ERROR, ON_PRETRIGGER, ON_DATA_AVAILABLE, ON_END_OF_AI_SCAN

For PCI-DAS1602/16 and PCI-DAS1602/12 the following argument values are

also valid:

ON_END_OF_AO_SCAN

Hardware considerations

Pacing analog input

Hardware pacing, external or internal clock supported.

The clock edge used to trigger acquisition for the external pacer may be rising or falling, and is selectable

using InstaCal.

For the PCI-DAS1602/16, the packet size is 256 samples. All others in this series have a packet size of 512

samples.

Analog input configuration

The analog input mode is selectable via InstaCal for either 8-channel differential or 16-channel single-ended.

Triggering and gating - PCI-DAS1602 Series

Digital (TTL) and analog hardware triggering supported.

Analog thresholds are set relative to the ±10 V range. For example: a threshold of 0 equates to -10 V.

Thresholds of 65535 and 4095 correspond to +9.999695 and +9.995116 V for the 16-bit and 12-bit boards,

respectively.

When using analog trigger feature, one or both of the DACs are unavailable for other functions. If the trigger

function requires a single reference (GATE_ABOVE, GATE_BELOW, TRIGABOVE, and TRIGBELOW), DAC0 is

available. If the trigger function requires two references (GATE_IN_WINDOW, GATE_ OUT_WINDOW,

GATE_NEG_HYS and GATE_ POS_HYS), neither DAC is available for other functions.

Triggering and gating - PCI-DAS1200, PCI-DAS1000 Series

Digital (TTL) hardware triggering supported.

Concurrent operations - PCI-DAS1602 Series

Concurrent analog input and output scans supported. That is, PCI-DAS1602 Series boards allow for

operations of analog input functions (cbAInScan() and cbAPretrig()) and analog output functions

(cbAOutScan()) to overlap without having to call cbStopBackground() between the start of input and output

scans. Equivalent UL for .NET methods are AInScan(), APretrig(), AOutScan(), and StopBackground().

Pacing analog output - PCI-DAS1602 Series

Hardware pacing, external or internal clock supported.